Keep in mind that the aftermarket steering kits use OEM tie rod ends, so if that's all that's bad you can just replace them. The new systems don't even include them; you have to get them from Nissan seperatly. Now, if you have a worn centerlink then that's a different story.
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ChuckH
"Every morning when I wake up I know it's not going to get any better 'til I go back to sleep again!" Al Bundy